Is it possible to measure CO2 effluxes in an arable ecosystem using chambers without soil frames?

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F13%3A00424052" target="_blank" >RIV/67179843:_____/13:00424052 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Is it possible to measure CO2 effluxes in an arable ecosystem using chambers without soil frames?
Original language description
The push-in chamber and chambers with alternative gaskets were tested under fi eld conditions in order to estimate the rates of under- or overestimation of the CO2 effl uxes measured with chambers placed directly on a soil surface (without collars). Th eexperiment was conducted on a spring barley fi eld which was harvested just before the measuring campaign. Th e following were tested: 1) a pushed-in chamber with a sharp metal blade installed on the edge of the chamber walls which was inserted to a depth of 1?2 cm to the soil, 2) a chamber with a 10 cm wide and 3 cm high rubber gasket, and 3) a chamber with a 10 cm wide and 2 cm high neoprene gasket. Th e results indicated that the application of the pushed-in chamber led to overestimation of the fl uxes by 55%, while application of chambers with alternative gaskets led to underestimation of the fl uxes by 30?40% due to the leakage of the gas from the chamber headspace through holes beneath the gaskets. Our experiment confi rmed that
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Global Change and Resilience: From Impacts to Responses : Proceedings of the 3rd annual Global Change and Resilience Conference
ISBN
978-80-904351-8-6
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
168-172
Publisher name
Global change research centre, Academy of Sciences of the Czech Republic, v. v. i
Place of publication
Brno
Event location
Brno
Event date
May 22, 2013
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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